Скачать или смотреть Java Developer related 1000 questions series (10 to 20 Q/A)

Here is the 10 to 20 Questions , we will discuss later
11. Let say, we run a java class without passing any arguments. What will be the value of String array of arguments in Main method?
12. What is the difference between byte and char data types in Java?
13. What are the main principles of Object Oriented Programming?
14. What is the difference between Object Oriented Programming language and Object Based Programming language?
15. In Java what is the default value of an object reference defined as an instance variable in an Object?
16. Why do we need constructor in Java?
17. Why do we need default constructor in Java classes?
18. What is the value returned by Constructor in Java?
19. Can we inherit a Constructor?
20. Why constructors cannot be final, static, or abstract in Java?